<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>个人存款计算器</title>
		<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
	    <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
	    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
	    <script>
	    	function calc(){
	    		//1. 取得用户输入的存款金额
	    	  var money = $("#money").val();//jQuery函数
	    	  var monNum = parseInt(money);
	    	  var balance = 0;
	    	  var totalNum = 0;
	    	  
	    	  //2. 计算
	    	  var year = $("#year option:selected").text();
	    	  //alert(year);
	    	  if (year == "一年") {
	    	  	balance = monNum * 0.0175 * 1;
	    	  	totalNum = balance + monNum;
	    	  }
	    	   if (year == "二年") {
	    	  	balance = monNum * 0.0225 * 2;
	    	  	totalNum = balance + monNum;
	    	  }
	    	   if (year == "三年") {
	    	  	balance = monNum * 0.0275 * 3;
	    	  	totalNum = balance + monNum;
	    	  }
	    	   if (year == "五年") {
	    	  	balance = monNum * 0.0275 * 5;
	    	  	totalNum = balance + monNum;
	    	  }
	    	   //3. 显示到界面上
	    	   $("#ban").val(balance);
	    	   $("#total").val(totalNum);
	    	}
	    </script>
	</head>
	<body>
		<div class="text-center">
			<table class="table table-bordered">
				<tr class="bg-primary">
					<td colspan="2">个人存款计算器</td>
				</tr>
				<tr>
					<td class="bg-info">存款金额</td>
					<td>
						<input class="form-control" type="text" id="money">
					</td>
				</tr>
				<tr>
					<td class="bg-info">存款期限</td>
					<td>
						<select class="form-control" id="year">
							<option>一年</option>
							<option>二年</option>
							<option>三年</option>
							<option>五年</option>
						</select>
					</td>
				</tr>
				<tr>
					<td class="bg-info">所得利息</td>
					<td>
						<input class="form-control" readonly="readonly" type="text" id="ban">
					</td>
				</tr>
				<tr>
					<td class="bg-info">本息合计</td>
					<td>
						<input readonly="readonly" class="form-control" type="text" id="total">
					</td>
				</tr>
				<tr>
					<td colspan="2">
						<button onclick="calc()" class="btn btn-danger btn-block">开始计算</button>
					</td>
				</tr>
		
			</table>
		</div>
	</body>
</html>
